Seiko Prospex SPB381 Sea MM200 Automatic GMT Green featured making for a sophisticated presence

making for a sophisticated presence

With the ETA F06

then treated with a hairline finish to expose the stainless steel below the convex surfaces only

the watch is suitably engineered for all conditions

Lug Width (MM): 22

Seiko Prospex SPB381 Sea MM200 Automatic GMT Green featured making for a sophisticated presenceCaliber Number: 6R54 Movement Type: Automatic with manual winding Precision: +25 to 15 seconds per day Power Reserve: Approx. 72 hours(3 days) Jewels: 24 Case Band Case Material: Stainless steel (super hard coating) Case Size Thickness: 12. 9mm Diameter: 42. 0mm Lug to lug: 48. 6mm Crystal: Sapphire crystal Crystal Coating: Anti reflective coating on inner surface LumiBrite: LumiBrite on hands, index(es) and bezel Clasp: Three fold clasp with secure